Recent content by Frank Cole

I sprayed WD-40 every place I could reach. No stumble or increase in RPMs.

Correct. If I put my hand over the primary air horn, the rpms increase noticeably.

Timing port was plugged or T-ed off with another gauge to make sure advance wasn't pulled in while f-ing with everything else.

Yep. Plugged PCV and unplugged. Same vacuum numbers either way.

JW - Everything was capped or plugged when tuning including Booster and PCV. When you say timing, do you mean ignition timing or cam to crank timing? I assume ignition. I'm running 17 degrees initial with 35 all in by 3000rpms but I tried everything from 6 degrees initial to 22 degrees...

Gas is fresh. Good point though.

So I swapped a perfectly working '71 TQ and the problem persists. I'm getting about 9-10" vacuum with both carbs and I tried several base gaskets. After everything, the leak is coming from under the intake or what? Bad valves?? I'm going to perform a leak down and compression test once the...

$800 - Yikes! I think the receipt for $500 is from 2018. Gives the word inflation a new meaning.

Yeah, I had every vacuum port plugged on the intake and carb. I mean everything and the idle was hunting and the car stalls when I put it in gear. I'm going to try a carb swap with my other '71 340. The Edelbrock750 would not stall when I put the car in gear but the idle wasn't great...

I'm not even close to being "spot on" or "on the money." I would graciously settle for the car not stalling when I put it in gear. I have another '71 Challenger with the same carb and mostly stock. I'm going to swap carbs this weekend and see what happens. At least I should be able to...

I assume nothing. I am not the original purchaser of the rebuild and therefore don't have a vested interest from Scott Smith's point of view. It would be like if you bought a car from someone who bought a car from me and thinking I owe you. I would not make such a presumption but that is just me.

Bewy - I have another 1971 Challenger with the same carb. I'm going to swap carbs this weekend and see what happens but your probably right.

Edel wandering but much less than TQ. Bone stock visually and listening to exhaust note - no lopey cam noise. I highly doubt the cam if not stock, is close. My low vacuum is likey internal carb or under intake. Vaccum advance is not being activated. Tuned with advanced plugged or T-ed with...

Reread your post. CORRECTION - I just checked and the metering rods stay mostly DOWN down. Fluctuate but mostly down.

Advance was either plugged or T-ed off when tuning. I'm sure distributor advance wasn't contributing. If the problem is vacuum related, it's either internal in the carb or under manifold which I'll pull as a last resort.